baber/WOPTO huggingface dataset:
Patent GB-345017-A (GB)
Title: Improvements in carburetters
IPC: F02M7/17
Filed: 1930-01-27
Abstract: 345,017. Spray carburetters. JAMES PNEUMATIC CARBURETTER CO., Ltd., 21, Victoria Avenue, Woollahra, near Sydney, Australia. Jan. 27, 1930, No. 2732. Convention date, Feb. 25, 1929. [Class 7 (iii).] In a carburetter in which the fuel and air supplies are automatically controlled by the engine suction and an air-braking effect is obtainable, the jet 17 is controlled by a metering pin 22, suspended by a pin 23 in a ported sleeve 36, which controls the air ports 35, and is carried by an annular piston 39 moving in a vacuum chamber 10. The latter is in communication through a tube 46 with a space 14 surrounding the jet. The piston 39 is retained in the chamber 10 by a spring clip 40, having a finger engaging a slot in the sleeve 36 and a bifurcated arm 41 engaged by a lever 52 on a hollow rod 49. The sleeve 36 can be rotated to vary the opening of the air ports by rotating the rod 49 by means of an extension 53. To obtain air braking, the throttle is closed and the rod 49 is pushed inwards, putting the chamber 10 into communication with the induction pipe through a passage 50 and a port in the rod 49. The piston is then raised by the suction, and a lip 44 on the piston is engaged by the end of the rod 49, while the jet 17 is closed by a spring-pressed valve 19, normally held down by the end of the pin 22. The throttle is then opened. The jet 17 is carried by a nipple 16 in the float chamber 8, which screws into a boss 13 in the cover 11, and the idling position of the jet is adjusted by rotating the float chamber. The boss 13 screws into the end 15 of the mixing chamber 9, leaving a space 37 which houses the end of the sleeve 36 in the closed position. A semicircular float 31 is carried by pivoted levers which control the needle valve 28.
Patent GB-1364191-A (GB)
Title: Conveyors
IPC: B65G47/26
Filed: 1972-01-20
Abstract: 1364191 Roller conveyers DEMAG AG 20 Jan 1972 [8 March 1971] 2756/72 Heading B8A Each group of rollers of an accumulation roller conveyer comprises a primary driven roller 2 and a plurality of secondary rollers 3 driven by the roller 2. One or more idler rollers may be disposed between adjacent groups and each group is provided with an article feeler 21 which controls a dog-clutch of the roller 2. The clutch has springs 9 which normally urge recesses 7a into engagement with flanges 8a of a driven chain wheel 8. Disengagement of the clutch is caused by depression of the feeler 21 of the roller group immediately downstream of the roller 2, the feeler being connected to clutchoperating arms 13 by a cable 19. The rollers 3 are driven by a chain 12 from the roller 2 but, to enable the rollers 3 to be gradually brought up to speed when the dog-clutch is engaged, a slip clutch including cup springs 33 is also provided on the roller 2. The chain 12 also drivingly connects all the rollers 2. (For Figures see next page.)
Patent GB-339850-A (GB)
Title: Bucking process for vegetable fibrous material
IPC: D01C1/02
Filed: 1930-01-27
Abstract: 339,850. Ullmann, G Jan 26, 1929, [Convention date]. Retting.-In the boiling (bucking) process for obtaining fibres from vegetable material such as cotton, flax, jute, &c., by the removal of the fatty and waxy substances, pectin substances, albuminoids, the natural colouring matters and woody husk portions, using as solvents metallic hydroxides such as Ca(OH)2, Ba(OH)2, Sr(OH)2, Al2 (OH)6' or Fe2 (OH)6, and caustic alkalies, the use of these agents together in one boiling liquor and a product capable of continuous bleaching without pressure and in open vessels is obtained by adding to the boiling liquor such materials as allow the metallic soaps of the fats and waxes present to be produced in a soluble or highly dispersive form in which they can easily be rinsed off. Suitable substances for this purpose ara the well known soluble oil preparations which are insensitive to lime and are obtained by the sulphonation of castor oil and other oils and subsequent boiling with alkalies, also sulphonation products of unsaturated fatty acids and resins. Alkali salts of sulphonic acids of polynuclear aromatic hydrocarbons having alkyl side chains such as isopropyl naphthylamine sulphonate of sodium and known, similarly acting substances can be used. After boiling, the material is washed and acidified and a product is obtained which frequently requires no further bleaching, or, if bleaching is necessary, a less concentrated bleaching is needed. The process is a satisfactory preliminary to the bleaching of coloured textiles.
Patent GB-327784-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/16
Filed: 1929-01-26
Abstract: 327,784. Greene, G. F. Jan. 26, 1929. R a z o r s, safety. A Gillette or other type of thin blade is mounted in a holder so that its cutting edge projects substantially beyond the edge of a supporting plate 7, its upper surface, between the support and the cutting edge, being engaged by a clamping frame 15 and its underside, at or near the cutting edge, by a guard 30 exerting upward resilient pressure. The blade support 7 is hooked on to a main supporting plate 1 by engagement of slots 8 with bent-over lugs 4. The rear edge of the blade fits under a bent-back lug 12, a plain, backed, blade resting on the projecting lugs 4 or the holes in a Gillette type of blade encompassing the lugs 4 and a central stud 9. The clamping frame 15, of wire bent to the shape shown, is hinged under bent-over lugs 11 on the plate 7 and pressed down upon the blade by the nip of a pivoted or other U-shaped clasp 22 bearing upon the cross bars 17 of the frame when pressed into position. The guard is carried by a wire frame 27 which is hinged under bent-over lugs 5 on the main supporting plate 1 and is curved at the centre 29 to snap over a spring tongue 6 in the supporting plate to hold the assemblage in operative position, as shown in Fig. 2. The guard may be in the form of a rotatable roller 30 with end washers 32 and helical ribs 31 which may engage the cutting edge and serve to keep it sharp, or the guard may be formed of twisted wire with eyes at the .ends to receive the pintles. Alternatively, a non-rotary guard comprising a bar with fine and/or coarse teeth 34, Fig. 7, may be employed. The supporting plate 1 is permanently or detachably pivoted by means of a pin 40 between the free ends of the arms 38, 39 of a bent strip metal handle 37 arranged so that it may be swung round to enclose the blade holding elements when collapsed, Fig. 3, flanges 42 on the yielding arm 38 retaining the handle in either position.
Patent GB-230236-A (GB)
Title: Transfers for decorative purposes
IPC: B44C1/17
Filed: 1924-02-02
Abstract: 230,236. Klein, P. Feb. 2, 1924. Ink.-Transfers, particularly for decorating rubber articles, are printed with an ink consisting of 27 per cent of rubber, 2 per cent of sulphur, 5 per cent of paraffin oil, 0.4 per cent of diphenylguanidin, and 65.6 per cent of red dye.
Patent GB-1020703-A (GB)
Title: Process for the production of oxidised polymers
Inventor: WHITBY FRANCIS JOHN
IPC: C08F291/18
Filed: 1964-01-22
Abstract: Oxidized polymers are produced by subjecting a solution in an inert solvent of an organic polymer containing carbon-hydrogen bonds to ultra-violet radiation in the presence of oxygen and a halo-aliphatic compound as catalyst. The polymer may be derived from styrene, ethylene, propylene, butadiene, acrylonitrile, vinyl chloride, methyl methacrylate or vinyl acetate.  The solvent may be an aromatic compound, e.g. benzene, and a hydrogen donor, e.g. ethyl alcohol, may be present during oxidation.  The catalyst may be carbon tetrabromide.  A graft polymer may be produced by initiating polymerization of an ethylenically unsaturated monomer, e.g. in benzene, by means of the above oxidized polymer so that the monomer is graft polymerized on to the oxidized polymer. The monomer may be methyl methacrylate and the oxidized polymer may be polystyrene. The graft polymerization may be catalysed using a reducing agent, e.g. ferrous caprylate.
Patent GB-538730-A (GB)
Title: Improvements in clamps for pipes, cables and the like
IPC: F16B7/04
Filed: 1940-02-13
Abstract: 538,730. Brackets. BRISTOL AEROPLANE CO., Ltd., and SYMON, A. Feb. 13, 1940, No. 2782. [Class 52 (v)] [Also in Groups XXV and XXXVI] A clamping device for securing and supporting a number of pipes, conduits or the like of different diameters side-by-side particularly on aircraft structures, comprises separate complementary pairs of recessed blocks 13-17, each pair appropriate to a particular size of pipe, the blocks being detachably assembled in a pair of frame members 10, 11 which can be drawn together to effect clamping by means of bolts and nuts. The members 10, 11 are of channel form adapted to embrace correspondingly undercut parts such as 19, Fig. 3, on the blocks, which are assembled by sliding into the channels from the ends. The assembly is completed by end blocks 18 receiving the clamping bolts. The projecting ends 22 of the bolts may be secured to the desired support, frame 11 with the lower block of each pair and with the end-pieces 18 being then placed on the bolts. The upper ends 20 of the end-pieces are cut away as in Fig. 3 so that frame 10 carrying the upper block of each pair can be applied over the pipes &c., and secured by nuts on the ends 21 of the bolts. The blocks may be of rubber or plastic or acetate material, in which case they may be plated with metal to provide "earth" connection for the pipes &c.
Patent GB-102412-A (GB)
Title: An Improvement in Propellers and Tractors for use in Aerial or Marine Propulsion or Traction.
Inventor: DIGGLE SAMUEL
IPC: B64C11/04
Filed: 1916-02-24
Abstract: 102,412. Diggle, S., and Carter, J. P. Feb. 24, 1916. Screw propellers.-Relates to hollow resilient metal propellers suitable for aerial and marine vessels. An H-shaped girder, consisting of a vertical steel plate A having lugs A<1> passed through slots B' in upper and lower steel plates B and riveted thereto, forms the backbone of the propeller and is stiffened by transverse webs F, to which are secured wires J, which in turn are fastened to the outer plates. In a modification, the skeleton is made of wire. A blade so constructed is attached directly to the propeller shaft by the bolts L<2>, P, brackets L, and the slotted lug M, as shown in Fig. 5, or to the shaft is adjustably secured, so as to allow alteration of pitch, a dovetail plate W, Fig. 7, to which the shank T of the blade is attached by the bolts U.
Patent GB-1347623-A (GB)
Title: Device for locking and unlocking the door of a washing machine
IPC: E05B47/06
Filed: 1972-01-20
Abstract: 1347623 Releasable fastenings INDUSTRIE A ZANUSSI SpA 20 Jan 1972 [9 Feb 1971] 2848/72 Heading E2A [Also in Division F2] A door 2 of a washing machine, is when in its closed position, fastened by a main bolt 3, the latter being retained in the fastening position, for a pre-determined period of time after the washing machine has been disconnected from an electrical supply, by an auxiliary bolt. The latter comprises a lever 7 which is pivotally mounted at 8 to a box 9, is urged by a spring 10 into the main bolt retaining position shown in full lines in the drawing and is moved to the main bolt releasing position shown in dash-dot lines when a magnet 11 at one end of the lever is attracted to a magnet 12 carried by the box 9. The gap between the magnets is controlled by a thermoferrite plate 13 which is heated, when electricity is supplied to the machine, by a resistor 15, via a heat-conductive blade 14. The heating of the plate 13 above the burie point temporarily removes its magnetic property and prevents attraction between the magnets 11, 12. The cooling of the plate 13 below the burie point replaces its magnetic property so that the magnets are attracted to each other, thus causing the lever 7 to move to the main bolt releasing position and allow the main bolt 3 to be displaced against the urging of a spring 4 so that the moving of the door to its open position can be effected.
Patent GB-1291045-A (GB)
Title: Contact structures for vacuum-type circuit interrupters having radially outwardly-extending spokes
IPC: H01H33/664
Filed: 1970-01-21
Abstract: 1291045 Vacuum switch contacts WESTINGHOUSE ELECTRIC CORP 21 Jan 1970 [10 Feb 1969] 2849/70 Heading H1N The contact of a vacuum switch has radial extensions 19 set back from the contact surface 8a on to which the arc transfers. The extensions are narrowest adjacent the central contact 8a so that they transfer a minimum of heat back to the contact. The extensions are separated by equal spaces. The contact 8a may be of an alloy of copper with 0À3% bismuth and the extensions of pure copper (with a lower arcing voltage).
Patent GB-1014790-A (GB)
Title: Nuclear reactor
Inventor: JERVIS MAX WILLIAM
IPC: G21C17/108
Filed: 1964-01-23
Abstract: 1,014,790. Pressure vessels. NUCLEAR POWER PLANT CO. Ltd., and A.E.I.-JOHN THOMPSON NUCLEAR ENERGY CO. Ltd. [trading as THE NUCLEAR POWER GROUP], Nov. 3, 1964 [Jan. 23, 1964], No. 3012/64. Heading G6C. A reactor core 2 and associated heat exchangers are located in a concrete pressure vessel 1, and instruments 6 for measuring neutron flux are located in the bottom wall of the vessel; access to the instruments is provided by a passage 7 which includes a secondary radiation shield 8, preferably concrete. The heat exchangers are housed in the space 3, and are protected by shielding 4. A top secondary shield 5 may also be provided. The spaces in which the instruments are housed may penetrate the wall of the vessel.
Patent GB-176739-A (GB)
Title: Improvements in or relating to strainers for paint or other substances or liquids
IPC: B44D3/10
Filed: 1922-02-01
Abstract: 176,739. Joseph, R. Feb. 1, 1922. Funnel strainers.-A funnel strainer for paint &c. comprises a detachable strainer f resting on an internal rib of a ring c, which is hinged at the bottom of a tapered vessel a and can be secured by a hinged clip e engaging with a lug on the ring.
Patent GB-664179-A (GB)
Title: Removal of catalyst from olefin polymer products
IPC: C08F10/00
Filed: 1949-02-03
Abstract: The metal halide catalyst and hydrogen halide promoter are removed from the products of olefine polymerization by mixing the crude product with an alcohol and then adding water to the mixture, removing the alcohol and water, and washing the polymer with a further quantity of water.  Suitable alcohols are ethyl, n-propyl, isopropyl, and butyl alcohols.  The alcohol-water mixture containing the catalyst and promoter may be neutralized with an alkali, such as potassium, sodium, or calcium hydroxide, and fractionated to provide an azeotrope which may then be recycled for further reaction with the crude olefin polymers.  The process may be applied to the continuous polymerization of propylene, butylenes, and pentenes, or the copolymerization of these with olefines or diolefines in the presence of ferric bromide, boron trifluoride, or aluminium chloride or bromide as catalysts, hydrogen fluoride, chloride or bromide as activators, and a diluent such as n-butane.ALSO:The metal halide catalyst and hydrogen halide promotor are removed from the products of olefine polymerization by mixing the crude product with an alcohol and then adding water to the mixture, removing the alcohol and water, and washing the polymer with a further quantity of water.  Suitable alcohols are ethyl, n-propyl, iso-propyl, and butyl alcohols.  The alcohol-water mixture containing the catalyst and promoter may be neutralized with an alkali such as potassium, sodium, and calcium hydroxides, and fractionated to provide an azeotrope which may then be recycled for further reaction with crude olefine polymers.  The process may be applied to the polymerization of propylene, butylenes, and pentenes, or the copolymerization of these with olefines or diolefines in the presence of ferric bromide, boron trifluoride, or aluminium chloride or bromide as catalysts, hydrogen fluoride, chloride or bromide as activators, and a diluent such as n-butane, to provide polymers of both high and low viscosity.
Patent GB-1474363-A (GB)
Title: Artificial flowers
IPC: A41G1/00
Filed: 1976-01-27
Abstract: 1474363 Artificial flowers J E M JASONLLOYD 27 Jan 1976 03110/76 Heading A4X An artificial flower is formed by gathering a strip 10 of lace along an edge 10A by means of a thread 11, winding the strip to form a flower-like shape in which the threaded portion forms a core and binding the core by threads sewn transversely through it. A stem formed of copper wire wrapped in green gutta-percha tape is then passed through the centre of the flower until a hook formed at an end of the wire becomes embedded in the centre and a loop of the wire is formed around the core to prevent relative movement between the flower and the stem. Alternatively, the taped wire is passed transversely through the core, both ends of the wire being thereafter bent away from the flower, wound together and taped again with green material. Such flowers may be wound from more than one strip and may be wound with green artificial leaves on to a wire frame to form bouquets, hand sprays or corsages.
Patent GB-697168-A (GB)
Title: Improvements in and relating to high frequency oscillation generators
IPC: H03B5/12
Filed: 1950-02-07
Abstract: 697,168. Semiconductor oscillator circuits. COMPAGNIE DES FREINS & SIGNAUX WESTINGHOUSE. Feb. 7, 1950 [Feb. 18, 1949], No. 3133/50. Class 40 (vi). A high frequency oscillator comprises a semiconductor having emitter, base and collector electrodes, capacitative feed-back being provided between the output circuit, which comprises the collector electrode and the input circuit which comprises the emitter electrode. In Fig. 1, a variable condenser C<SP>1</SP> is connected between the collector electrode 2 and emitter electrode 1 on the semiconductor element SC. Reference is made to Specification 697,164, [Group XXXIX], regarding the construction of the semiconductor device. Condensers C1 and C2 offer low impedance at the operating frequency, and variable resistors R1 and R2 are effectively connected between the base and the emitter and collector electrodes respectively. Adjustable bias voltages are supplied from sources S1 and S2, meters being connected in the circuit to measure the voltages and currents. It is stated that continuous sawtooth oscillations may be produced by adjusting the values of the resistances and bias voltages. Fig. 2 shows a modification in which tuned circuits are connected in the emitter and collector circuits, and the coupling condenser C<SP>1</SP> is connected between inductances B1 and B2. A piezo-electric crystal may be connected in series with condenser C<SP>1</SP>, or in the emitter circuit. In a further modification, the output circuit is also inductively coupled to the input circuit.
Patent GB-829769-A (GB)
Title: Improvements relating to electrical connectors for coaxial cables
Inventor: BRADLEY LEO KENNETH
IPC: H01R9/05
Filed: 1955-02-02
Abstract: 829,769. Two-part couplings. FAIREY AVIATION CO. Ltd. April 25, 1956 [Feb. 2, 1955], No. 3145/55. Class 38(1). A connector for a coaxial cable, shown as forming one half of a double connector for two cables, comprises a split resilient socket terminal 15 to receive the end of the cable inner conductor and two complementary clamping members 19, 20 having conical surfaces 21, 22 between which the outer flexible cable conductor 25 is clamped when a hollow screw 26 is screwed into a metal body 10 insulated from terminal 15 by insulation 14. Three such connectors may be used to form a T-junction for three cables.
Patent GB-393229-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F23/04
Filed: 1933-02-01
Abstract: 393,229. Gentrifuge washers. KRAUSS, F. E., Schwarzenberg, Saxony, Germany. Feb. 1, 1933, Nos. 3151 and 3152. Convention dates, Feb. 13, 1932, and July 16, 1932. [Class 23.] In a washing-centrifuge with an air drive, the air from the centrifuge casing is used to dry the centrifuged washing which is supported upon a frame or the like. The drum d has blades d<1> and is driven by the blower c on the shaft of the motor b. The casing a<1> of the centrifuge is provided with a door a<11> which can be opened so that air from the blower is directed on to the washing on the frame e at the side of the centrifuge. The arms of the frame may revolve, and in a modification, the frame is mounted on the top of the casing a<1>. The drum may be removed from the casing for the drying operation. In another modification the articles to be dried rest upon a grating g placed at the top of the casing a<1>. In a further modification, Fig. 5, the drum is supported on a column o, and the motor is mounted on the transverse shaft k<1> so that it can be turned by an external lever until the blower faces a lateral aperture in the casing. The lever may be connected to the lid so that opening the lid tilts the motor. In a similar manner a brake may be applied to the drum by the movement of the lid.
Patent GB-211138-A (GB)
Title: Improvements in or relating to gear cutting machines
IPC: B23F9/10
Filed: 1924-02-06
Abstract: 211,138. Soc. Anon. des Etablissements Leflaive, (Assignees of Leflaive, J.). Feb. 8, 1923, [Convention date]. Gear-cutting.-A machine of the Gleason type such as that described in Specification 18658/14 for cutting bevel gears having curved teeth is provided with a double headstock so that two blanks may be cut simultaneously. In a modification two such headstocks may be arranged on one machine for cutting four gears at once. Fig. 1 shows diagrammatically the arrangement of the blanks with respect to the cutter. The upper blank R is mounted normally in relation to the annular cutter 20 and the cutter cradle is moved as indicated to generate the teeth. In order that the cutter may also roll correctly with respect to the second blank R', the latter, which is rotated in the opposite direction to the blank R, is given a compensating vertical movement by means of a rod a connecting the blank and cutter axes. In the embodiment shown in Figs. 4 and 5, two blank-supporting headstocks 8, 15, are respectively mounted on carriages 3, 1 which are pivoted on a hub 2 and which may be given equal and opposite angular feeding movements by means of a pinion 5 engaging on opposite sides with sectors 6, 7 formed on the carriages. The spindle 9 of the headstock 8 carrying the blank R is fixed at the height of the axis of the cutter cradle and is driven through the bevel gears 10, 11, 12 and worm gear 13. Corresponding rotation is imparted to the second blank R<1> mounted on the spindle of the headstock 15 by means of spiral gears 22 and coupling 23 as shown in Fig. 6. The headstock 15, which is counterbalanced by a weight 21, slides on its carriage in guides 16 and the vertical compensating movement is effected by means of an adjustable connecting-rod 18 secured on a spindle 19 fixed to the cutter spindle. In a modification, two double headstocks are mounted on two semicircular tables T, T<1>, Fig. 8, and the cutter spindle is provided with a cutter at each end, this arrangement permitting the simultaneous cutting of four gears.
Patent GB-510532-A (GB)
Title: Improvements in vibrating apparatus such as screens, conveyors, concentrating or classifying tables
IPC: B07B1/28
Filed: 1938-02-02
Abstract: 510,532. Jigging conveyers. WILLIAMSON, J. S. Feb. 2, 1938, No. 3194. [Class 78 (i)] [Also in Group II] A pair of screens or conveyers of equal weight is secured to the ends of resilient laminated supporting members fixed at their centres to a stationary frame located between the screens &c. and vibrated by a single rotating shaft having not more than two cranks or eccentrics. In the form shown, the screens or conveyers A1, B1 are secured to the ends of the laminated springs 4 which are secured at their centres 4c to a frame 2 carrying a motor 7 driving the shaft 6g carried in bearings on the screen frame A1. The shaft 6g has eccentric portions working in bearings 8a carried by a connecting rod consisting of leaf springs 8c secured to brackets 8d on the lower screen frame B1. Compression springs 5 may be provided to carry the dead weights of the screen frames.